refactor: Feature/offline mode rework (#859)

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modules/vlc-player-4/ios/AppLifecycleDelegate.swift

@@ -0,0 +1,32 @@
+import ExpoModulesCore
+
+protocol SimpleAppLifecycleListener {
+    func applicationDidEnterBackground() -> Void
+    func applicationDidEnterForeground() -> Void
+}
+
+public class AppLifecycleDelegate: ExpoAppDelegateSubscriber {
+  public func applicationDidBecomeActive(_ application: UIApplication) {
+    // The app has become active.
+  }
+
+  public func applicationWillResignActive(_ application: UIApplication) {
+    // The app is about to become inactive.
+  }
+
+  public func applicationDidEnterBackground(_ application: UIApplication) {
+    VLCManager.shared.listeners.forEach { listener in
+        listener.applicationDidEnterBackground()
+    }
+  }
+
+  public func applicationWillEnterForeground(_ application: UIApplication) {
+        VLCManager.shared.listeners.forEach { listener in
+            listener.applicationDidEnterForeground()
+        }
+  }
+
+  public func applicationWillTerminate(_ application: UIApplication) {
+    // The app is about to terminate.
+  }
+}